The voltage indicates how many cells are in the pack. 7 celled pack has 8.4V, 8 cell pack has 9.6V etc... The voltage dictates how fast your motor turns the gears (your rate of fire). The mAh rating is how much "space" there is in the pack to hold power. Higher mAh rating, longer it will last, more shots per charge.
Cheapbatterypacks.com is actually a great website that many people here use to make custom batteries to fit in specific guns. And nun-chuck is just one of the variations of batteries to fit in certain guns. It makes no difference in its performance, only voltage, mAh and chemical composition (nimh, nicd, lipo, life-po, etc...) affects performance.
My trust is in whiskey, in weed and in Slayer, its GODDAMN ELECTRIC
Originally Posted by Pliskin
This is the equivalent to knocking on deaths door and blowing his head off with a shotgun.